It’s a mix of original music, re-recordings and covers. There are new tracks from indie bands like Hey Marseilles and Freedom fry, covers of classics like OutKast’s ‘Hey Ya!’ or Cyndi Laupers ‘True Colors,’ as well as sessions where bands trim down their own music. The full list of songs is available here.

It looks like Amazon is trying to promote itself as a serious destination for music lovers by trying to match Spotify, which offers acoustic music through its ‘Spotify Sessions’ albums, or MTV’s Unplugged series. It’s also a straightforward way for the company to snag some exclusives.

The company is promoting the album by allowing customers to listen to some of the songs as they shop using a pop-up player at the top of its site, regardless of where or not they’re subscribed to Prime.